400 Annals of the South African Museum. 



without the parallel sculpturing found in the other species. Operculum 

 in $ tapering to a bifid apex. The other pleopods as in crassimanus. 



Uropod, outer ramus a trifle shorter than inner, both rami with long 

 simple setae. 



Length : 7'5 mm. ; breadth : 2'25 mm. 



Colour: In spirit yellowish-white, eyes brownish. 



Locality: Vasco da Gama Peak N. 71 E., distant 18 miles (off 

 Cape Point). 230 fathoms. 4 $ $ , 6 $ $ (with ova and embryos) 

 among the outer spicules of an Hexactiuellid sponge (Pheronema) ; 

 Table Mountain S. by E. f E., distant 58 miles. 190 fathoms. 2 <J 

 amongst siliceous sponges, s.s. " Pieter Faure." 4/5/00 and 3/4/02. 

 (S.A.M. Nos. A2855 and A4075.) 



In the key given by Hansen (I.e. p. 316) this species comes under 

 B.a./3. ; the form of the first peraeopod is somewhat similar to that of 

 siamense Hanseri, but the absence of lateral projections of the head in 

 this latter species offers a ready mark of distinction. 



STENETKIUM DALMEIDA n. sp. 



Body nearly smooth, glabrous except for a few isolated setae ou the 

 pleou and the antero- lateral angles of the peraeon segments. Head 

 with the antero-lateral angles acutely produced, not incurved, rostrum 

 broader than long, antero-lateral angles quadrate, anterior margin 

 straight. Eyes narrow oblong, curved. 



Peraeon segments 1-4 subequal, each with a shallow transverse 

 groove across the middle, antero-lateral angles of 1-3 acutely produced, 

 of 4 quadrate. Ventral keel obsolete on all the segments except 3 and 

 4, where it forms a blunt process, and on 7, where it forms a backwardly 

 directed spine on the posterior margin. 



Pleon very little longer than broad, lateral margin with only one 

 tooth, distal margin arcuate with a fairly prominent acute median lobe. 



Antenna 1, 1st joint largest, 2nd shortest, 3rd a little longer than 

 2nd but more slender, flagellum of 12 joints. 



Antenna 2, 1st joint acutely but not strongly produced on outer 

 apex, scale on 3rd ovate, apically setose, 6th a little longer than 5th, 

 flagellum longer than peduncle, multiarticulate. 



Mouth-parts normal. 



Peraeopod 1 in <$ , 3rd and 4th joints strongly and very acutely 

 produced on outer apex, 5th not produced, 6th sub-triangular, a little 

 broader than long, palm a little oblique with one strong acute tooth 

 in the centre and another near the hinge (both teeth lacking in the 

 smaller , 5 mm. long), one small spine on the defining angle, finger 



